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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 687 · 40 questions
TalentJR

Remember (One chip, one job): Microcontroller = processor + memory + input/output pins on one chip. Board parts: USB port (power and code), pins, reset button, power LED, main chip, voltage regulator. Write the program → upload over USB → it runs its loop for ever; power by USB or a small battery.

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  1. 1.Which of these usually has a microcontroller inside? (a) a spinning top (b) a TV remote (c) a plain wall switch (d) a candle
  2. 2.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a digital thermometer (d) a wind-up toy
  3. 3.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  4. 4.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a big desktop computer (d) a type of battery
  5. 5.Which of these usually has a microcontroller inside? (a) a hand pump (b) a smart watch (c) a plain wall switch (d) a candle
  6. 6.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  7. 7.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  8. 8.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) a wall socket directly (d) bare mains wires
  9. 9.Which of these has no microcontroller inside? (a) a spinning top (b) a smart watch (c) a digital alarm clock (d) a microwave oven
  10. 10.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  11. 11.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a digital alarm clock (d) a bicycle bell
  12. 12.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  13. 13.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the main chip (d) the USB port
  15. 15.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  16. 16.Which job is done by the pins? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  17. 17.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  18. 18.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a digital thermometer (d) a bicycle bell
  19. 19.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  20. 20.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  21. 21.True or false: a microcontroller needs much more power. (a) False (b) True
  22. 22.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  23. 23.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  24. 24.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  25. 25.True or false: a laptop has no screen of its own. (a) True (b) False
  26. 26.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the main chip (c) the power LED (d) the USB port
  27. 27.True or false: a laptop needs much more power. (a) True (b) False
  28. 28.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) flash memory (d) the power LED
  29. 29.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  30. 30.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  31. 31.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  32. 32.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  33. 33.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  34. 34.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) drawn with a pen (d) typed on the chip
  35. 35.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  36. 36.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the main chip (c) the USB port (d) the voltage regulator
  37. 37.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the USB port (c) the power LED (d) the reset button
  39. 39.Which of these has no microcontroller inside? (a) a TV remote (b) a microwave oven (c) a smart watch (d) a candle
  40. 40.True or false: a laptop has a built-in keyboard. (a) False (b) True

Answer key

  1. a TV remote
  2. a wind-up toy
  3. laptop
  4. a computer on one chip
  5. a smart watch
  6. No
  7. microcontroller
  8. USB or a 9 V battery
  9. a spinning top
  10. microcontroller
  11. a bicycle bell
  12. False
  13. True
  14. the pins
  15. Yes
  16. connect sensors and LEDs
  17. False
  18. a digital thermometer
  19. True
  20. True
  21. False
  22. laptop
  23. No
  24. No
  25. False
  26. the USB port
  27. True
  28. flash memory
  29. Yes
  30. True
  31. microcontroller
  32. Yes
  33. False
  34. uploaded over USB
  35. True
  36. the voltage regulator
  37. Yes
  38. the power LED
  39. a candle
  40. True

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